Retaining device for presses.



H. SLATER.

RETAINING DEVICE FOR PRESSES.

APPLICATION FILED MAR.17, 1013.

1,079,068. Patented Nov. 18, 1913.

. j/ a wide 122% WTTED STATES PATENT UFFTCE.

HARVEY SLATER, OF CHICAGO, ILLINOIS, ASSIGNOR TO CHARLES F. ELMS ENGINEER- ING WORKS, OF CHICAGO, ILLINOIS.

RETAINING DEVICE FOR PRESSES.

Specification of Letters Patent.

Application filed March 17. 1913.

Patented N (W. 18, 1913. Serial No. 754,850.

To all 207mm it may concern .3e it known that I, Hnnvnv Srnvrnn, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Retaining Dovices for Presses, of which the following is a specification.

My invention relates to veneer presses and more specifically to retaining devices employed in conjunction with presses of this nature.

In the gluing of veneer pieces together, it is the practice, at the present time, to arrange a plurality of the glued veneer pieces in a stack. This stack is arranged between the heads of a hydraulic press and compressed thereby to effect the proper gluing together of the component veneer pieces. In this compressing operation, it is the practice, to arrange the stack of veneer pieces between holding members, the respective ends of which project from the stack. 'hen the stack is in a state of compression under the influence of the press, retaining devices are arranged in engagement with these holding members, said retaining men'ibers being adjusted to retain the stack in the state of compression which has been effected by the press, so as to permit of the stack being removed from the press and set aside to dry and for the insertion of another stack in the place of the first, to be similarly compressed.

The object of this invention is to provide retaining means which may be readily and easily applied to the stack and as expeditiously and easily removed when desired.

A further object is the production of retaining means which will be of durable and economical construction and eilicient in use. Other objects will appear hereinafter.

WVith these objects in view, my invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawing forming a part of this specification, and. in which,

Figure 1 is a. side elevation of one end portion of a veneer stack arranged between the heads of a press, to which is applied a retaining device embodying my inven tion, Fig. 2 is a side elevation of the retaining device detached, and Fig. 3 is an enlarged top plan view of the device shown in Fig. 2.

The preferred form of construction as illustrated in the drawing comprises an elongated cylimlrieal rod 1 the respective ends of which are oppositely screw-threaded. Arranged at the respective ends of the rod 1 in threaded relation therewith are heads 2 and 3. Provided upon the rod 1 intermediate the extrcmities thereof is a grip t through the medium of which the rod 1 may be manually rotated to eil'ect movement of the heads 52 and toward or from each other.

Pivotally mounted at 5 upon the head 2 is a substantially U-shaped engaging member 6 provided at the free end thereof with laterally projecting ears or lugs 7. The cars 7, when the retainer is in use, are adapted to engage with the holding members 8 of the veneer stack 9, as shown in Fig. 1, said holding members being of channel form, the ears 7 engaging against the upper sides of the inwardly turned lowcr flanges of said channels, as clearly illustrated.

The head 3 is provided with integral laterally projecting cars 10 which cmrrespondingly engage with the holding members 8 at the under side of the stack, that is with the under sides of the inwardly turned up per flanges of said members 8.

In using the device, after the veneer stack 9 has been placed in a condition of compression between the heads 11 of the veneer press, the retainer members are applied to the holding members 8, as clearly shown in l ig. 1, a plurality of holding members 8 being used spaced along the upper and lower sides of the stack, a retaining member c0- operating with the corresponding ends of each pair of said holding members. In adjusting the retainer member into engagement with the holding members 8, the rods 1 are readily rotated through engagement with the grips 4t. \Vhen the retaining device is in operative position, the engaging member 6 thereof is so positioned that the pressure is toward its pivot, the engaging device being on dead center. \Vhen the engaging member (3 is in operative position, as mentioned the bight 12 thereof is spaced slightly from the corresponding side of the head 2, and so that, in order to release the retainer it is only necessary to insert the point. of a lever in the form of a rod or any slender member 18 under the bight 12 and rock the lower end of said lever outwardly, such operation effecting the tripping of said engaging member and hence the release of the retaining member. This operation is readily, easily and expeditiously efiected, this as will be appreciated by those skilled in the'art, being of great advantage in that time and labor will be saved. I 7

While I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit of the invention. 1, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having described my invention what I claim as new and desire to secure by Letters Patent is:

1. The combination with the holding members of a press, of a retainer rod; and heads adjustably mounted at the respective ends of said rod adapted for engagement with said holding members, one of said heads comprising a pivotally mounted engaging member having a laterally extending free end adapted to engage the corresponding holding member, said engaging member, when in operative position, being on dead center, with the pressure toward its pivot, substantially as described.

2. The combination with the holding members of a press, of a retainer rod; and heads adjustably mounted at the respective ends of said rod adapted for engagement with said holding members, one of said heads comprising a pivotally mounted substantially U-shaped engaging member, the ends of said member pivotally engaging said head; and laterally projecting ears at the free ends of said member for engagement with said holding members, substantially as described.

3. The combination with the holding members of a press, of a retainer rod; heads adjustably mounted at the respective ends of said rod adapted for engagement with said holding members, one of said heads comprising a body; a pivotally mounted U- shaped engaging member, member pivotally engaging said body; and laterally projecting ears at the free end of said member for engagement with said holdthe ends of said 7 ing member, said engaging member, when in operative position, being on dead center, the bight of said member, when the latter is in operative position, being spaced from said body, substantially as described. 4. The combination with the holding members of a press, of a retainer rod; heads loosely threaded upon the respective ends of said rod adaptedvfor engagement with said holding members, one of said heads comprising a body; a pivotally mounted U- shaped engaging member, the ends of said member pivotally engaging said body; and laterally projecting ears at the free end of said member for engagement with said holding member, said engaging member, when in operative position, being on dead center, the bight of said member, when the latter is in operative position, being spaced from said body, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

HARVEY SLATER.

Witnesses:

HELEN F. LILLIS, A. A. OLSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

